A new study claims practice may be responsible for as little as 29% of mastery.
In another a meta-analysis of 88 studies (11 135 participants), the researchers found that practice accounted for a 26% games, 21% for music, 18% for sports, 4% for education, and less than 1% for professions.
The table above shows that large number of people achieve level of master a lot faster than 10 000 hours.
“Deliberate Practice and Performance in Music, Games, Sports, Education, and Professions”; Brooke N. Macnamara, David Z. Hambrick, Frederick L. Oswald; Psychological Science Vol 25, Issue 8, pp. 1608 – 1618
Hambrick, D. Z., Oswald, F. L., Altmann, E. M., Meinz, E. J., Gobet, F., & Campitelli, G. (2014). Deliberate practice: Is that all it takes to become an expert? Intelligence, 45(1), 34-45.